From the New York Times report on a memorial to Maj. Douglas A. Zembiec, aka the Lion of Fallujah:
The serviceman described hearing the Iraqi radio message crackle after Major Zembiec was hit. "What came over the radio was ‘five wounded and one martyred'; they didn't say whether it was Iraqi or American," he said. "The dictionary says that a martyr sacrifices something of value, especially a life of principle."
For more on Zembiec, check out this old post at Blackfive.